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author | Juergen Beisert <j.beisert@pengutronix.de> | 2007-11-09 21:13:55 +0100 |
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committer | Juergen Beisert <j.beisert@pengutronix.de> | 2007-11-12 16:28:23 +0100 |
commit | d59c600c656d08410ea862c582fbd77432c3ca47 (patch) | |
tree | 6c03b005910d262d7740348dae648c2cdfc7fe2e /commands/mem.c | |
parent | 57cae4e82669748f94fad4d741c3fcf9cde128ac (diff) | |
download | barebox-d59c600c656d08410ea862c582fbd77432c3ca47.tar.gz barebox-d59c600c656d08410ea862c582fbd77432c3ca47.tar.xz |
separating memory commands
Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Diffstat (limited to 'commands/mem.c')
-rw-r--r-- | commands/mem.c | 557 |
1 files changed, 0 insertions, 557 deletions
diff --git a/commands/mem.c b/commands/mem.c deleted file mode 100644 index 09565505c4..0000000000 --- a/commands/mem.c +++ /dev/null @@ -1,557 +0,0 @@ -/* - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -/* - * Memory Functions - * - * Copied from FADS ROM, Dan Malek (dmalek@jlc.net) - */ - -#include <common.h> -#include <command.h> -#include <init.h> -#include <driver.h> -#include <malloc.h> -#include <errno.h> -#include <fs.h> -#include <fcntl.h> -#include <getopt.h> -#include <linux/stat.h> -#include <xfuncs.h> - -#ifdef CMD_MEM_DEBUG -#define PRINTF(fmt,args...) printf (fmt ,##args) -#else -#define PRINTF(fmt,args...) -#endif - -#define RW_BUF_SIZE (ulong)4096 -static char *rw_buf; - -static char *DEVMEM = "/dev/mem"; - -/* Memory Display - * - * Syntax: - * md{.b, .w, .l} {addr} {len} - */ -#define DISP_LINE_LEN 16 - -int memory_display(char *addr, ulong offs, ulong nbytes, int size) -{ - ulong linebytes, i; - u_char *cp; - - /* Print the lines. - * - * We buffer all read data, so we can make sure data is read only - * once, and all accesses are with the specified bus width. - */ - do { - char linebuf[DISP_LINE_LEN]; - uint *uip = (uint *)linebuf; - ushort *usp = (ushort *)linebuf; - u_char *ucp = (u_char *)linebuf; - - printf("%08lx:", offs); - linebytes = (nbytes>DISP_LINE_LEN)?DISP_LINE_LEN:nbytes; - - for (i=0; i<linebytes; i+= size) { - if (size == 4) { - printf(" %08x", (*uip++ = *((uint *)addr))); - } else if (size == 2) { - printf(" %04x", (*usp++ = *((ushort *)addr))); - } else { - printf(" %02x", (*ucp++ = *((u_char *)addr))); - } - addr += size; - offs += size; - } - - puts (" "); - cp = (u_char *)linebuf; - for (i=0; i<linebytes; i++) { - if ((*cp < 0x20) || (*cp > 0x7e)) - putchar('.'); - else - printf("%c", *cp); - cp++; - } - putchar('\n'); - nbytes -= linebytes; - if (ctrlc()) { - return -EINTR; - } - } while (nbytes > 0); - - return 0; -} - -int open_and_lseek(const char *filename, int mode, ulong pos) -{ - int fd, ret; - - fd = open(filename, mode | O_RDONLY); - if (fd < 0) { - perror("open"); - return fd; - } - - ret = lseek(fd, pos, SEEK_SET); - if (ret < 0) { - perror("lseek"); - close(fd); - return ret; - } - - return fd; -} - -static int mem_parse_options(int argc, char *argv[], char *optstr, int *mode, - char **sourcefile, char **destfile) -{ - int opt; - - getopt_reset(); - - while((opt = getopt(argc, argv, optstr)) > 0) { - switch(opt) { - case 'b': - *mode = O_RWSIZE_1; - break; - case 'w': - *mode = O_RWSIZE_2; - break; - case 'l': - *mode = O_RWSIZE_4; - break; - case 's': - *sourcefile = optarg; - break; - case 'd': - *destfile = optarg; - break; - default: - return -1; - } - } - - return 0; -} - -static int do_mem_md(cmd_tbl_t *cmdtp, int argc, char *argv[]) -{ - ulong start = 0, size = 0x100; - int r, now; - int ret = 0; - int fd; - char *filename = DEVMEM; - int mode = O_RWSIZE_4; - - errno = 0; - if (mem_parse_options(argc, argv, "bwls:", &mode, &filename, NULL) < 0) - return 1; - - if (optind < argc) { - if (parse_area_spec(argv[optind], &start, &size)) { - printf("could not parse: %s\n", argv[optind]); - return 1; - } - if (size == ~0) - size = 0x100; - } - - fd = open_and_lseek(filename, mode | O_RDONLY, start); - if (fd < 0) - return 1; - - do { - now = min(size, RW_BUF_SIZE); - r = read(fd, rw_buf, now); - if (r < 0) { - perror("read"); - goto out; - } - if (!r) - goto out; - - if ((ret = memory_display(rw_buf, start, r, mode >> O_RWSIZE_SHIFT))) - goto out; - - start += r; - size -= r; - } while (size); - -out: - close(fd); - - return errno; -} - -static __maybe_unused char cmd_md_help[] = -"Usage md [OPTIONS] <region>\n" -"display (hexdump) a memory region.\n" -"options:\n" -" -s <file> display file (default /dev/mem)\n" -" -d <file> write file (default /dev/mem)\n" -" -b output in bytes\n" -" -w output in halfwords (16bit)\n" -" -l output in words (32bit)\n" -"\n" -"Memory regions:\n" -"Memory regions can be specified in two different forms: start+size\n" -"or start-end, If <start> is ommitted it defaults to 0. If end is ommited it\n" -"defaults to the end of the device, except for interactive commands like md\n" -"and mw for which it defaults to 0x100.\n" -"Sizes can be specified as decimal, or if prefixed with 0x as hexadecimal.\n" -"an optional suffix of k, M or G is for kibibytes, Megabytes or Gigabytes,\n" -"respectively\n"; - - -U_BOOT_CMD_START(md) - .maxargs = CONFIG_MAXARGS, - .cmd = do_mem_md, - .usage = "memory display", - U_BOOT_CMD_HELP(cmd_md_help) -U_BOOT_CMD_END - -static int do_mem_mw ( cmd_tbl_t *cmdtp, int argc, char *argv[]) -{ - int ret = 0; - int fd; - char *filename = DEVMEM; - int mode = O_RWSIZE_4; - ulong adr; - - errno = 0; - - if (mem_parse_options(argc, argv, "bwld:", &mode, NULL, &filename) < 0) - return 1; - - if (optind + 1 >= argc) { - u_boot_cmd_usage(cmdtp); - return 1; - } - - adr = strtoul_suffix(argv[optind++], NULL, 0); - - fd = open_and_lseek(filename, mode | O_WRONLY, adr); - if (fd < 0) - return 1; - - while (optind < argc) { - u8 val8; - u16 val16; - u32 val32; - switch (mode) { - case O_RWSIZE_1: - val8 = simple_strtoul(argv[optind], NULL, 0); - ret = write(fd, &val8, 1); - break; - case O_RWSIZE_2: - val16 = simple_strtoul(argv[optind], NULL, 0); - ret = write(fd, &val16, 2); - break; - case O_RWSIZE_4: - val32 = simple_strtoul(argv[optind], NULL, 0); - ret = write(fd, &val32, 4); - break; - } - if (ret < 0) { - perror("write"); - break; - } - optind++; - } - - return errno; -} - -static __maybe_unused char cmd_mw_help[] = -"Usage: mw [OPTIONS] <region> <value(s)>\n" -"Write value(s) to the specifies region.\n" -"see 'help md' for supported options.\n"; - -U_BOOT_CMD_START(mw) - .maxargs = CONFIG_MAXARGS, - .cmd = do_mem_mw, - .usage = "memory write (fill)", - U_BOOT_CMD_HELP(cmd_mw_help) -U_BOOT_CMD_END - -static int do_mem_cmp(cmd_tbl_t *cmdtp, int argc, char *argv[]) -{ - ulong addr1, addr2, count = ~0; - int mode = O_RWSIZE_1; - char *sourcefile = DEVMEM; - char *destfile = DEVMEM; - int sourcefd, destfd; - char *rw_buf1; - int ret = 1; - int offset = 0; - struct stat statbuf; - - if (mem_parse_options(argc, argv, "bwls:d:", &mode, &sourcefile, &destfile) < 0) - return 1; - - if (optind + 2 > argc) { - u_boot_cmd_usage(cmdtp); - return 1; - } - - addr1 = simple_strtoul(argv[optind], NULL, 0); - addr2 = simple_strtoul(argv[optind + 1], NULL, 0); - - if (optind + 2 == argc) { - if (sourcefile == DEVMEM) { - printf("source and count not given\n"); - return 1; - } - if (stat(sourcefile, &statbuf)) { - perror("stat"); - return 1; - } - count = statbuf.st_size - addr1; - } else { - count = simple_strtoul(argv[optind + 2], NULL, 0); - } - - sourcefd = open_and_lseek(sourcefile, mode | O_RDONLY, addr1); - if (sourcefd < 0) - return 1; - - destfd = open_and_lseek(destfile, mode | O_RDONLY, addr2); - if (destfd < 0) { - close(sourcefd); - return 1; - } - - rw_buf1 = xmalloc(RW_BUF_SIZE); - - while (count > 0) { - int now, r1, r2, i; - - now = min(RW_BUF_SIZE, count); - - r1 = read(sourcefd, rw_buf, now); - if (r1 < 0) { - perror("read"); - goto out; - } - - r2 = read(destfd, rw_buf1, now); - if (r2 < 0) { - perror("read"); - goto out; - } - - if (r1 != now || r2 != now) { - printf("regions differ in size\n"); - goto out; - } - - for (i = 0; i < now; i++) { - if (rw_buf[i] != rw_buf1[i]) { - printf("files differ at offset %d\n", offset); - goto out; - } - offset++; - } - - count -= now; - } - - printf("OK\n"); - ret = 0; -out: - close(sourcefd); - close(destfd); - free(rw_buf1); - - return ret; -} - -static __maybe_unused char cmd_memcmp_help[] = -"Usage: memcmp [OPTIONS] <addr1> <addr2> <count>\n" -"\n" -"options:\n" -" -b, -w, -l use byte, halfword, or word accesses\n" -" -s <file> source file (default /dev/mem)\n" -" -d <file> destination file (default /dev/mem)\n" -"\n" -"Compare memory regions specified with addr1 and addr2\n" -"of size <count> bytes. If source is a file count can\n" -"be left unspecified in which case the whole file is\n" -"compared\n"; - -U_BOOT_CMD_START(memcmp) - .maxargs = CONFIG_MAXARGS, - .cmd = do_mem_cmp, - .usage = "memory compare", - U_BOOT_CMD_HELP(cmd_memcmp_help) -U_BOOT_CMD_END - -static int do_mem_cp(cmd_tbl_t *cmdtp, int argc, char *argv[]) -{ - ulong count; - ulong dest, src; - char *sourcefile = DEVMEM; - char *destfile = DEVMEM; - int sourcefd, destfd; - int mode = O_RWSIZE_1; - struct stat statbuf; - int ret = 0; - - if (mem_parse_options(argc, argv, "bwls:d:", &mode, &sourcefile, &destfile) < 0) - return 1; - - if (optind + 2 > argc) { - u_boot_cmd_usage(cmdtp); - return 1; - } - - src = simple_strtoul(argv[optind], NULL, 0); - dest = simple_strtoul(argv[optind + 1], NULL, 0); - - if (optind + 2 == argc) { - if (sourcefile == DEVMEM) { - printf("source and count not given\n"); - return 1; - } - if (stat(sourcefile, &statbuf)) { - perror("stat"); - return 1; - } - count = statbuf.st_size - src; - } else { - count = simple_strtoul(argv[optind + 2], NULL, 0); - } - - sourcefd = open_and_lseek(sourcefile, mode | O_RDONLY, src); - if (sourcefd < 0) - return 1; - - destfd = open_and_lseek(destfile, O_WRONLY | O_CREAT | mode, dest); - if (destfd < 0) { - close(sourcefd); - return 1; - } - - while (count > 0) { - int now, r, w; - - now = min(RW_BUF_SIZE, count); - - if ((r = read(sourcefd, rw_buf, now)) < 0) { - perror("read"); - goto out; - } - - if ((w = write(destfd, rw_buf, r)) < 0) { - perror("write"); - goto out; - } - - if (r < now) - break; - - if (w < r) - break; - - count -= now; - } - - if (count) { - printf("ran out of data\n"); - ret = 1; - } - -out: - close(sourcefd); - close(destfd); - - return ret; -} - -static __maybe_unused char cmd_memcpy_help[] = -"Usage: memcpy [OPTIONS] <src> <dst> <count>\n" -"\n" -"options:\n" -" -b, -w, -l use byte, halfword, or word accesses\n" -" -s <file> source file (default /dev/mem)\n" -" -d <file> destination file (default /dev/mem)\n" -"\n" -"Copy memory at <src> of <count> bytes to <dst>\n"; - -U_BOOT_CMD_START(memcpy) - .maxargs = CONFIG_MAXARGS, - .cmd = do_mem_cp, - .usage = "memory copy", - U_BOOT_CMD_HELP(cmd_memcpy_help) -U_BOOT_CMD_END - -static struct device_d mem_dev = { - .name = "mem", - .id = "mem", - .map_base = 0, - .size = ~0, /* FIXME: should be 0x100000000, ahem... */ -}; - -static struct driver_d mem_drv = { - .name = "mem", - .probe = dummy_probe, - .read = mem_read, - .write = mem_write, -}; - -static struct driver_d ram_drv = { - .name = "ram", - .probe = dummy_probe, - .read = mem_read, - .write = mem_write, - .type = DEVICE_TYPE_DRAM, -}; - -static struct driver_d rom_drv = { - .name = "rom", - .probe = dummy_probe, - .read = mem_read, -}; - -static int mem_init(void) -{ - rw_buf = malloc(RW_BUF_SIZE); - if(!rw_buf) { - printf("%s: Out of memory\n", __FUNCTION__); - return -1; - } - - register_device(&mem_dev); - register_driver(&mem_drv); - register_driver(&ram_drv); - register_driver(&rom_drv); - return 0; -} - -device_initcall(mem_init); - |